Improvement in feed-rolls for rossing-machines



tiene iaira @anni didn,

Letters Patent No. 109,199, dated November 15, 1870.

IMPROVEMENT IN FEED-ROLLS-FOR ROSSING-MACHINES.

The Schedule referred te in these Letters Patent and making pari; of the same.

To all fwhom fit may conce-rn j Be it known that I, CHARLES GiLPlN, of Cumberland, in the county oi' Alleghany and State of Maryland, have invented a new and improved Feed-Cylinder for Hessing-Machines; and I do hereby declare the following to be `a full, clear, and exactdcscription oi' the same, reference being had to thev accompa-nying` drawing making a part oi' this speeiiication, in which the iigure is a perspective lview.

This invent-ion relates to a cylinder intended for tanners use,`in connection with a knife, in taking oli" the epidermis or ross from bark ing the same.

It vconsists of a cylinder divided into a number of lengths, all forming parts of the Same piece, however, and all having different diameters, the lengths at one end having the greatest diameter, the next length less, the third less, and so on in a regnlarly-decreasing series to the opposite end and last length, which' is of the least diameter, the object of this construction he ing to adapt thecylinder to pieces of bark et' different thicknesses, so that theA proper quantity of ross in each case may be taken oi1 without changing the position ofthe knife.

Hcretofore such cylinders have been made of uniprevious to grindform diameter, and it is the knife that has been raised 0r lowered to snit dioerent thicknesses of bark.

My improvement dispenses entirely with the neces'- st-y of changing the position of the knife.

Referring to the drawing- (t, D, and c are the different lengths of the corrugated ieed-cylinder. y

The length (t is of greater diz'nnet-er` than the length b, and the length b is of greater diameter than the length c. Hence, the length a is suited to the thinnest Yariety'of bark, the lengt-h b to a thicker variety, and the length cto a still thicker one.

There ma `be' as man 1 different lengths all verfrb 7 b lng in diameter, as desired, and, instead of havingthe lengths arranged in a regular] yr-decreasing series on the cylinder, they may be irregularly interspersed.

Having thus described my inventiom,

lVhat I claim as new, and desire to secure by Letters Patent, is-

The ieed-eylinder for a rossing-machine, having lengths of different diameters, substantially as described.

litnessesa QHARLLES: GILPIN,

H. B. BRUCE, W. W. STRONG. 

